Coaxial electrospun TiO2/ZnO core-sheath nanofibers film: Novel structure for photoanode of dye-sensitized solar cells

被引：56

作者：

Du, Pingfan ^{[1
,2
]}

Song, Lixin ^{[1
]}

Xiong, Jie ^{[1
]}

Li, Ni ^{[1
]}

Xi, Zhenqiang ^{[2
]}

Wang, Longcheng ^{[2
]}

Jin, Dalai ^{[2
]}

Guo, Shaoyi ^{[2
]}

Yuan, Yongfeng ^{[2
]}

机构：

[1] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Zhejiang, Peoples R China

[2] Zhejiang Sci Tech Univ, Ctr Mat Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2012年 / 78卷

关键词：

Dye-sensitized solar cells; Core-sheath; Nanofibers; Coaxial electrospinning; NANOPOROUS ELECTRODE; ENERGY CONVERSION; CARBON NANOTUBE; ZNO; PERFORMANCE; FABRICATION; EFFICIENCY; TRANSPORT; FIBERS; RECOMBINATION;

D O I：

10.1016/j.electacta.2012.06.034

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Novel TiO2/ZnO core-sheath nanofibers (NFs) film was fabricated through an extraordinary coaxial electrospinning technique. Dye-sensitized solar cells (DSSCs) were assembled using the TiO2/ZnO NFs film as photoanode. FESEM, TEM, FTIR, XRD, XPS and UV-vis were used to characterize the NFs electrode film. Photocurrent-voltage (I-V) characteristic, incident photo-to-current conversion efficiency (IPCE) spectrum, and electrochemical impedance spectroscopy (EIS) measurements were performed to evaluate the DSSCs performance. The results reveal that the DSSCs based on the TiO2/ZnO core-sheath NFs are superior to their bare TiO2 NFs-based counterparts. Compared with the latter, the overall energy conversion efficiency was enhanced from 4.47 to 5.17%. And the possible mechanism for this enhancement was discussed. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：392 / 397

页数：6

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